Suped

Knowledge base
/
Email authentication

DMARC

A comprehensive collection of questions and answers about DMARC email authentication from email marketers, experts and technical documentation.
What happens to DMARC, SPF, and DKIM during DNS server outages?
After p=reject, should you maintain separate DMARC subdomain records?
What service is using the `dc-aa8e######._spfm.domain.com` SPF structure?
Is there a list of bad BIMI configurations based on sending domain or BIMI domain?
Does DMARC reporting cascade to subdomains?
Should BIMI assets be protected by CDN or bot protection?
Can BIMI SVG files be hosted by a Certificate Authority, and does it work for Gmail?
Is DMARCbis (the DMARC update) a finalized standard yet?
Is strict DMARC alignment always necessary for email security?
Does Apple Branded Email display logos for Gmail users in Apple Mail, and how does it compare to BIMI?
PreviousNext
DMARC monitoring

Start monitoring your DMARC reports today

Suped DMARC platform dashboard

What you'll get with Suped

Real-time DMARC report monitoring and analysis
Automated alerts for authentication failures
Clear recommendations to improve email deliverability
Protection against phishing and domain spoofing
Get started - free
Product
DMARC monitoring
SPF flattening
Blocklist monitoring
MSP
Pricing
Tools
DMARC record generator
Blocklist checker
Email tester
Resources
API docs
Customers
Blog
Guides
Knowledge base
Company
About
Trust and security

Suped

Privacy policy
Terms of service
© 2026 Suped Pty Ltd
LinkedInX